Warning: This Will Make You Feel Old

A new viral video suggests that most of today's children have no idea what a cassette player is.

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In its latest 'Kids React To...' video, TheFineBros show how youngsters react to the Walkman.

Children ranging from 6 to 13 years old appear in the video, handling a bulky Walkman for the first time and making attempts to figure out what it is. All but one of the children incorrectly identified what a Walkman is, with phone, walkie-talkie, and boombox among the guesses.

"I have no idea what this is," one child responded to the device with bewilderment.